.opt-bottom-container {
  width: 100%;
  height: 200px;
  padding: 20px;
  box-sizing: border-box;
  background: #1f1f36;
}

.start-transaction {
  display: inline-block;
  width: 200px;
  height: 40px;
  line-height: 40px;
  text-align: center;
  background: #26a69a;
  color: #fff;
  border-radius: 5px;
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
}

.stop-transaction {
  display: inline-block;
  width: 200px;
  height: 40px;
  line-height: 40px;
  text-align: center;
  background: #ef5350;
  color: #fff;
  margin-left: 20px;
  border-radius: 5px;
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
}

.clean-position {
  display: inline-block;
  width: 200px;
  height: 40px;
  line-height: 40px;
  text-align: center;
  background: #E6A23C;
  color: #1f1f36;
  margin-left: 20px;
  border-radius: 5px;
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
}

.log-container {
  width: 50%;
  margin-left: 60px;
  height: 160px;
  border-radius: 5px;
  border: 2px solid #2c3450;
  float: right;
  background: #2c3450;
}